If everyone between 40 and 85 years of age were active just 10 minutes more a day, it could save more than 110,000 U.S. lives a year, a large study reports. "Our projections are based on an additional 10 minutes of moderate to vigorous physical activity," said lead researcher Pedro Saint-Maurice of the Metabolic Epidemiology Branch at the U.S. National Cancer Institute in Bethesda, Md. "If the walk is brisk, it counts." And added exercise benefits everyone—white, Black, Asian and Hispanic, men and women, the investigators found. For the study, the researchers examined data from more than 4,800 middle-aged and...